@book{21829,
	author = {Tousley, Rayburn D. and Clark, Eugene.},
	title = {Principles of marketing /},
	publisher = {Macmillan,},
	year = {1962.},
	address = {New York, N.Y. :},
	note = {Based on Clark and Clark, Principles of marketing, 3rd ed., 1942.}
}